Keyword Search in Web-based Geographic Information Retrieval System

Web-based geographic information searchengines are prominently used in recent years. Spatialdatabases have both spatial and textual descriptions.Geographic web search engine retrieves the nearestobjects that are the most textually and spatiallyrelevant according to the user required keywords.Many number of spatial keyword query methods havebeen proposed and a variety of applications has beendeveloped in GIS decision support system. This paperproposes category based new combined indexstructure which integrates R* tree and inverted file.The proposed system can efficiently be used bothmultidimensional points and spatial data. Theproposed system is capable for good performanceand reduces the storage cost